1 /*****************************************************************************
2 * realaudio.c: a realaudio decoder that uses the realaudio library/dll
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
20 *****************************************************************************/
22 /*****************************************************************************
24 *****************************************************************************/
31 #include <vlc_codec.h>
34 /* Need the w32dll loader from mplayer */
35 # include <wine/winerror.h>
36 # include <ldt_keeper.h>
37 # include <wine/windef.h>
39 void *WINAPI LoadLibraryA( char *name );
40 void *WINAPI GetProcAddress( void *handle, char *func );
41 int WINAPI FreeLibrary( void *handle );
48 #if defined(HAVE_DL_DLOPEN)
49 # if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
52 # if defined(HAVE_SYS_DL_H)
57 /*****************************************************************************
59 *****************************************************************************/
60 static int Open ( vlc_object_t * );
61 static void Close( vlc_object_t * );
64 set_description( _("RealAudio library decoder") );
65 set_capability( "decoder", 10 );
66 set_category( CAT_INPUT );
67 set_subcategory( SUBCAT_INPUT_VCODEC );
68 set_callbacks( Open, Close );
71 /*****************************************************************************
73 *****************************************************************************/
74 static int OpenDll( decoder_t * );
75 static int OpenNativeDll( decoder_t *, char *, char * );
76 static int OpenWin32Dll( decoder_t *, char *, char * );
77 static void CloseDll( decoder_t * );
79 static aout_buffer_t *Decode( decoder_t *, block_t ** );
83 audio_date_t end_date;
91 short int i_codec_flavor;
94 unsigned long (*raCloseCodec)(void*);
95 unsigned long (*raDecode)(void*, char*, unsigned long, char*,
97 unsigned long (*raFlush)(unsigned long, unsigned long, unsigned long);
98 unsigned long (*raFreeDecoder)(void*);
99 void* (*raGetFlavorProperty)(void*, unsigned long,
100 unsigned long, int*);
101 unsigned long (*raInitDecoder)(void*, void*);
102 unsigned long (*raOpenCodec)(void*);
103 unsigned long (*raOpenCodec2)(void*, void*);
104 unsigned long (*raSetFlavor)(void*, unsigned long);
105 void (*raSetDLLAccessPath)(char*);
106 void (*raSetPwd)(char*, char*);
113 unsigned long (WINAPI *wraCloseCodec)(void*);
114 unsigned long (WINAPI *wraDecode)(void*, char*, unsigned long, char*,
115 unsigned int*, long);
116 unsigned long (WINAPI *wraFlush)(unsigned long, unsigned long,
118 unsigned long (WINAPI *wraFreeDecoder)(void*);
119 void* (WINAPI *wraGetFlavorProperty)(void*, unsigned long,
120 unsigned long, int*);
121 unsigned long (WINAPI *wraInitDecoder)(void*, void*);
122 unsigned long (WINAPI *wraOpenCodec)(void*);
123 unsigned long (WINAPI *wraOpenCodec2)(void*, void*);
124 unsigned long (WINAPI *wraSetFlavor)(void*, unsigned long);
125 void (WINAPI *wraSetDLLAccessPath)(char*);
126 void (WINAPI *wraSetPwd)(char*, char*);
129 /* linux dlls doesn't need packing */
130 typedef struct /*__attribute__((__packed__))*/ {
135 /* 2bytes padding here, by gcc */
142 /* windows dlls need packed structs (no padding) */
143 typedef struct __attribute__((__packed__)) {
154 void *__builtin_new(unsigned long size) {return malloc(size);}
155 void __builtin_delete(void *p) {free(p);}
157 static int pi_channels_maps[7] =
161 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
162 AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
163 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
164 | AOUT_CHAN_REARRIGHT,
165 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
166 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT,
167 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
168 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT | AOUT_CHAN_LFE
171 /*****************************************************************************
172 * Open: probe the decoder and return score
173 *****************************************************************************
174 * Tries to launch a decoder and return score so that the interface is able
176 *****************************************************************************/
177 static int Open( vlc_object_t *p_this )
179 decoder_t *p_dec = (decoder_t*)p_this;
180 decoder_sys_t *p_sys = p_dec->p_sys;
182 switch( p_dec->fmt_in.i_codec )
184 case VLC_FOURCC('c','o','o','k'):
185 case VLC_FOURCC('a','t','r','c'):
186 case VLC_FOURCC('s','i','p','r'):
193 /* Channel detection */
194 if( p_dec->fmt_in.audio.i_channels <= 0 ||
195 p_dec->fmt_in.audio.i_channels > 6 )
197 msg_Err( p_dec, "invalid number of channels (not between 1 and 6): %i",
198 p_dec->fmt_in.audio.i_channels );
202 p_dec->p_sys = p_sys = malloc( sizeof( decoder_sys_t ) );
203 memset( p_sys, 0, sizeof(decoder_sys_t) );
205 /* Flavor for SIPR codecs */
206 p_sys->i_codec_flavor = -1;
207 if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','i','p','r') )
209 p_sys->i_codec_flavor = p_dec->fmt_in.audio.i_flavor;
210 msg_Dbg( p_dec, "Got sipr flavor %d", p_sys->i_codec_flavor );
213 if( OpenDll( p_dec ) != VLC_SUCCESS )
220 if( p_sys->win32_dll ) Close( p_this );
223 es_format_Init( &p_dec->fmt_out, AUDIO_ES, AOUT_FMT_S16_NE );
224 p_dec->fmt_out.audio.i_rate = p_dec->fmt_in.audio.i_rate;
225 p_dec->fmt_out.audio.i_channels = p_dec->fmt_in.audio.i_channels;
226 p_dec->fmt_out.audio.i_bitspersample =
227 p_dec->fmt_in.audio.i_bitspersample;
228 p_dec->fmt_out.audio.i_physical_channels =
229 p_dec->fmt_out.audio.i_original_channels =
230 pi_channels_maps[p_dec->fmt_out.audio.i_channels];
232 aout_DateInit( &p_sys->end_date, p_dec->fmt_out.audio.i_rate );
233 aout_DateSet( &p_sys->end_date, 0 );
235 p_dec->pf_decode_audio = Decode;
237 p_sys->p_out = malloc( 4096 * 10 );
243 /*****************************************************************************
245 *****************************************************************************/
246 static void Close( vlc_object_t *p_this )
248 decoder_t *p_dec = (decoder_t*)p_this;
251 if( p_dec->p_sys->p_out ) free( p_dec->p_sys->p_out );
252 free( p_dec->p_sys );
255 /*****************************************************************************
257 *****************************************************************************/
258 static int OpenDll( decoder_t *p_dec )
263 /** Find the good path for the dlls.**/
268 "/usr/local/RealPlayer8/Codecs",
269 "/usr/RealPlayer8/Codecs",
270 "/usr/lib/RealPlayer8/Codecs",
271 "/opt/RealPlayer8/Codecs",
272 "/usr/lib/RealPlayer9/users/Real/Codecs",
273 "/usr/lib/RealPlayer10/codecs",
274 "/usr/lib/RealPlayer10GOLD/codecs",
275 "/usr/lib/helix/player/codecs",
276 "/usr/lib64/RealPlayer8/Codecs",
277 "/usr/lib64/RealPlayer9/users/Real/Codecs",
278 "/usr/lib64/RealPlayer10/codecs",
279 "/usr/lib64/RealPlayer10GOLD/codecs",
282 "/usr/local/lib/codecs",
290 char psz_win32_real_codecs[MAX_PATH + 1];
291 char psz_win32_helix_codecs[MAX_PATH + 1];
295 DWORD i_type, i_data = MAX_PATH + 1, i_index = 1;
298 p_data = psz_win32_real_codecs;
299 if( RegOpenKeyEx( HKEY_CLASSES_ROOT,
300 _T("Software\\RealNetworks\\Preferences\\DT_Codecs"),
301 0, KEY_READ, &h_key ) == ERROR_SUCCESS )
303 if( RegQueryValueEx( h_key, _T(""), 0, &i_type,
304 (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS &&
307 int i_len = strlen( p_data );
308 if( i_len && p_data[i_len-1] == '\\' ) p_data[i_len-1] = 0;
309 ppsz_path[i_index++] = p_data;
310 msg_Err( p_dec, "Real: %s", p_data );
312 RegCloseKey( h_key );
315 p_data = psz_win32_helix_codecs;
316 if( RegOpenKeyEx( HKEY_CLASSES_ROOT,
317 _T("Helix\\HelixSDK\\10.0\\Preferences\\DT_Codecs"),
318 0, KEY_READ, &h_key ) == ERROR_SUCCESS )
320 if( RegQueryValueEx( h_key, _T(""), 0, &i_type,
321 (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS &&
324 int i_len = strlen( p_data );
325 if( i_len && p_data[i_len-1] == '\\' ) p_data[i_len-1] = 0;
326 ppsz_path[i_index++] = p_data;
327 msg_Err( p_dec, "Real: %s", p_data );
329 RegCloseKey( h_key );
335 /** Try the native libraries first **/
337 for( i = 0; ppsz_path[i]; i++ )
340 asprintf( &psz_dll, "%s/%4.4s.so.6.0", ppsz_path[i],
341 (char *)&p_dec->fmt_in.i_codec );
342 i_result = OpenNativeDll( p_dec, ppsz_path[i], psz_dll );
344 if( i_result == VLC_SUCCESS ) return VLC_SUCCESS;
347 asprintf( &psz_dll, "%s/%4.4s.so", ppsz_path[i],
348 (char *)&p_dec->fmt_in.i_codec );
349 i_result = OpenNativeDll( p_dec, ppsz_path[i], psz_dll );
351 if( i_result == VLC_SUCCESS ) return VLC_SUCCESS;
356 /** Or use the WIN32 dlls **/
357 #if defined(LOADER) || defined(WIN32)
358 for( i = 0; ppsz_path[i]; i++ )
361 asprintf( &psz_dll, "%s\\%4.4s.dll", ppsz_path[i],
362 (char *)&p_dec->fmt_in.i_codec );
363 i_result = OpenWin32Dll( p_dec, ppsz_path[i], psz_dll );
365 if( i_result == VLC_SUCCESS ) return VLC_SUCCESS;
368 asprintf( &psz_dll, "%s\\%4.4s3260.dll", ppsz_path[i],
369 (char *)&p_dec->fmt_in.i_codec );
370 i_result = OpenWin32Dll( p_dec, ppsz_path[i], psz_dll );
372 if( i_result == VLC_SUCCESS ) return VLC_SUCCESS;
379 static int OpenNativeDll( decoder_t *p_dec, char *psz_path, char *psz_dll )
381 #if defined(HAVE_DL_DLOPEN)
382 decoder_sys_t *p_sys = p_dec->p_sys;
383 void *handle = 0, *context = 0;
384 unsigned int i_result;
388 ra_init_t init_data =
390 p_dec->fmt_in.audio.i_rate,
391 p_dec->fmt_in.audio.i_bitspersample,
392 p_dec->fmt_in.audio.i_channels,
394 p_dec->fmt_in.audio.i_blockalign, /* subpacket size */
395 p_dec->fmt_in.audio.i_blockalign, /* coded frame size */
396 p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra
399 msg_Dbg( p_dec, "opening library '%s'", psz_dll );
400 if( !(handle = dlopen( psz_dll, RTLD_LAZY )) )
402 msg_Dbg( p_dec, "couldn't load library '%s' (%s)",
403 psz_dll, dlerror() );
407 p_sys->raCloseCodec = dlsym( handle, "RACloseCodec" );
408 p_sys->raDecode = dlsym( handle, "RADecode" );
409 p_sys->raFlush = dlsym( handle, "RAFlush" );
410 p_sys->raFreeDecoder = dlsym( handle, "RAFreeDecoder" );
411 p_sys->raGetFlavorProperty = dlsym( handle, "RAGetFlavorProperty" );
412 p_sys->raOpenCodec = dlsym( handle, "RAOpenCodec" );
413 p_sys->raOpenCodec2 = dlsym( handle, "RAOpenCodec2" );
414 p_sys->raInitDecoder = dlsym( handle, "RAInitDecoder" );
415 p_sys->raSetFlavor = dlsym( handle, "RASetFlavor" );
416 p_sys->raSetDLLAccessPath = dlsym( handle, "SetDLLAccessPath" );
417 p_sys->raSetPwd = dlsym( handle, "RASetPwd" ); // optional, used by SIPR
419 if( !(p_sys->raOpenCodec || p_sys->raOpenCodec2) ||
420 !p_sys->raCloseCodec || !p_sys->raInitDecoder ||
421 !p_sys->raDecode || !p_sys->raFreeDecoder ||
422 !p_sys->raGetFlavorProperty || !p_sys->raSetFlavor
423 /* || !p_sys->raFlush || !p_sys->raSetDLLAccessPath */ )
428 if( p_sys->raOpenCodec2 )
429 i_result = p_sys->raOpenCodec2( &context, psz_path );
431 i_result = p_sys->raOpenCodec( &context );
435 msg_Err( p_dec, "decoder open failed, error code: 0x%x", i_result );
439 i_result = p_sys->raInitDecoder( context, &init_data );
442 msg_Err( p_dec, "decoder init failed, error code: 0x%x", i_result );
446 if( p_sys->i_codec_flavor >= 0 )
448 i_result = p_sys->raSetFlavor( context, p_sys->i_codec_flavor );
451 msg_Err( p_dec, "decoder flavor setup failed, error code: 0x%x",
456 p_prop = p_sys->raGetFlavorProperty( context, p_sys->i_codec_flavor,
458 msg_Dbg( p_dec, "audio codec: [%d] %s",
459 p_sys->i_codec_flavor, (char *)p_prop );
461 p_prop = p_sys->raGetFlavorProperty( context, p_sys->i_codec_flavor,
465 int i_bps = ((*((int*)p_prop))+4)/8;
466 msg_Dbg( p_dec, "audio bitrate: %5.3f kbit/s (%d bps)",
467 (*((int*)p_prop))*0.001f, i_bps );
471 p_sys->context = context;
476 if( context ) p_sys->raFreeDecoder( context );
477 if( context ) p_sys->raCloseCodec( context );
484 static int OpenWin32Dll( decoder_t *p_dec, char *psz_path, char *psz_dll )
486 #if defined(LOADER) || defined(WIN32)
487 decoder_sys_t *p_sys = p_dec->p_sys;
488 void *handle = 0, *context = 0;
489 unsigned int i_result;
493 wra_init_t init_data =
495 p_dec->fmt_in.audio.i_rate,
496 p_dec->fmt_in.audio.i_bitspersample,
497 p_dec->fmt_in.audio.i_channels,
499 p_dec->fmt_in.audio.i_blockalign, /* subpacket size */
500 p_dec->fmt_in.audio.i_blockalign, /* coded frame size */
501 p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra
504 msg_Dbg( p_dec, "opening win32 dll '%s'", psz_dll );
510 if( !(handle = LoadLibraryA( psz_dll )) )
512 msg_Dbg( p_dec, "couldn't load dll '%s'", psz_dll );
516 p_sys->wraCloseCodec = GetProcAddress( handle, "RACloseCodec" );
517 p_sys->wraDecode = GetProcAddress( handle, "RADecode" );
518 p_sys->wraFlush = GetProcAddress( handle, "RAFlush" );
519 p_sys->wraFreeDecoder = GetProcAddress( handle, "RAFreeDecoder" );
520 p_sys->wraGetFlavorProperty =
521 GetProcAddress( handle, "RAGetFlavorProperty" );
522 p_sys->wraOpenCodec = GetProcAddress( handle, "RAOpenCodec" );
523 p_sys->wraOpenCodec2 = GetProcAddress( handle, "RAOpenCodec2" );
524 p_sys->wraInitDecoder = GetProcAddress( handle, "RAInitDecoder" );
525 p_sys->wraSetFlavor = GetProcAddress( handle, "RASetFlavor" );
526 p_sys->wraSetDLLAccessPath = GetProcAddress( handle, "SetDLLAccessPath" );
528 GetProcAddress( handle, "RASetPwd" ); // optional, used by SIPR
530 if( !(p_sys->wraOpenCodec || p_sys->wraOpenCodec2) ||
531 !p_sys->wraCloseCodec || !p_sys->wraInitDecoder ||
532 !p_sys->wraDecode || !p_sys->wraFreeDecoder ||
533 !p_sys->wraGetFlavorProperty || !p_sys->wraSetFlavor
534 /* || !p_sys->wraFlush || !p_sys->wraSetDLLAccessPath */ )
536 FreeLibrary( handle );
540 if( p_sys->wraOpenCodec2 )
541 i_result = p_sys->wraOpenCodec2( &context, psz_path );
543 i_result = p_sys->wraOpenCodec( &context );
547 msg_Err( p_dec, "decoder open failed, error code: 0x%x", i_result );
551 i_result = p_sys->wraInitDecoder( context, &init_data );
554 msg_Err( p_dec, "decoder init failed, error code: 0x%x", i_result );
558 if( p_sys->i_codec_flavor >= 0 )
560 i_result = p_sys->wraSetFlavor( context, p_sys->i_codec_flavor );
563 msg_Err( p_dec, "decoder flavor setup failed, error code: 0x%x",
568 p_prop = p_sys->wraGetFlavorProperty( context, p_sys->i_codec_flavor,
570 msg_Dbg( p_dec, "audio codec: [%d] %s",
571 p_sys->i_codec_flavor, (char *)p_prop );
573 p_prop = p_sys->wraGetFlavorProperty( context, p_sys->i_codec_flavor,
577 int i_bps = ((*((int*)p_prop))+4)/8;
578 msg_Dbg( p_dec, "audio bitrate: %5.3f kbit/s (%d bps)",
579 (*((int*)p_prop))*0.001f, i_bps );
583 p_sys->context = context;
584 p_sys->win32_dll = handle;
588 if( context ) p_sys->wraFreeDecoder( context );
589 if( context ) p_sys->wraCloseCodec( context );
590 FreeLibrary( handle );
596 /*****************************************************************************
598 *****************************************************************************/
599 static void CloseDll( decoder_t *p_dec )
601 decoder_sys_t *p_sys = p_dec->p_sys;
603 if( p_sys->context && p_sys->dll )
605 p_sys->raFreeDecoder( p_sys->context );
606 p_sys->raCloseCodec( p_sys->context );
609 if( p_sys->context && p_sys->win32_dll )
611 p_sys->wraFreeDecoder( p_sys->context );
612 p_sys->wraCloseCodec( p_sys->context );
615 #if defined(HAVE_DL_DLOPEN)
616 if( p_sys->dll ) dlclose( p_sys->dll );
619 #if defined(LOADER) || defined(WIN32)
620 if( p_sys->win32_dll ) FreeLibrary( p_sys->win32_dll );
622 #if 0 //def LOADER /* Segfaults */
623 Restore_LDT_Keeper( p_sys->ldt_fs );
624 msg_Dbg( p_dec, "Restore_LDT_Keeper" );
629 p_sys->win32_dll = 0;
633 /*****************************************************************************
635 *****************************************************************************/
636 static aout_buffer_t *Decode( decoder_t *p_dec, block_t **pp_block )
638 decoder_sys_t *p_sys = p_dec->p_sys;
639 aout_buffer_t *p_aout_buffer = 0;
640 unsigned int i_result;
645 if( !p_sys->win32_dll && !p_sys->dll )
647 /* We must do open and close in the same thread (unless we do
648 * Setup_LDT_Keeper in the main thread before all others */
649 if( OpenDll( p_dec ) != VLC_SUCCESS )
652 p_dec->b_error = VLC_TRUE;
658 if( pp_block == NULL || *pp_block == NULL ) return NULL;
662 i_result = p_sys->raDecode( p_sys->context, (char *)p_block->p_buffer,
663 (unsigned long)p_block->i_buffer,
664 p_sys->p_out, &p_sys->i_out, -1 );
666 i_result = p_sys->wraDecode( p_sys->context, (char *)p_block->p_buffer,
667 (unsigned long)p_block->i_buffer,
668 p_sys->p_out, &p_sys->i_out, -1 );
671 msg_Err( p_dec, "decoded: %i samples (%i)",
672 p_sys->i_out * 8 / p_dec->fmt_out.audio.i_bitspersample /
673 p_dec->fmt_out.audio.i_channels, i_result );
676 /* Date management */
677 if( p_block->i_pts > 0 &&
678 p_block->i_pts != aout_DateGet( &p_sys->end_date ) )
680 aout_DateSet( &p_sys->end_date, p_block->i_pts );
683 if( !aout_DateGet( &p_sys->end_date ) )
685 /* We've just started the stream, wait for the first PTS. */
686 if( p_block ) block_Release( p_block );
690 i_samples = p_sys->i_out * 8 /
691 p_dec->fmt_out.audio.i_bitspersample /p_dec->fmt_out.audio.i_channels;
694 p_dec->pf_aout_buffer_new( p_dec, i_samples );
697 memcpy( p_aout_buffer->p_buffer, p_sys->p_out, p_sys->i_out );
699 /* Date management */
700 p_aout_buffer->start_date = aout_DateGet( &p_sys->end_date );
701 p_aout_buffer->end_date =
702 aout_DateIncrement( &p_sys->end_date, i_samples );
705 block_Release( p_block );
707 return p_aout_buffer;